There are multiple adhesive options for construction tapes, flashings, WRBs, and roofing underlayment membranes. Many products, though, fall into the acrylic adhesive bucket or butyl adhesive bucket. But which bucket is creepier to be in?
The acrylic adhesive creep test simulates thermal movement
In this tape test at the Benjamin Obdyke test house, we attached the bottom section of a butyl adhesive tape and Hydroflash UV+, an acrylic adhesive tape, to Benjamin Obdyke's Hydrogap weather-resistive barrier, taking the time to work the adhesive into the substrate with a squeegee.
The top of the tape flopped down, adhesive side out, and we stuck a 1.5-ounce block of wood to each tape to mimic the forces observed in thermal movement. Then, we waited to see which adhesive was creepier.
Acrylic adhesive isn't as creepy as butyl adhesive
As you can see, the butyl tape is pretty creepy to be around. Always reaching beyond its boundaries. But seriously, this test simulates the thermal expansion and contraction of building materials due to hot and cold weather changes, which happen in most climate zones.
If you want your tape to KEEP sticking, stick with Benjamin Obdyke.
Learn more about Benjamin Obdyke's acrylic adhesive technology at benjaminobdyke.com